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@@ -1,10 +1,9 @@
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;;; TRADING ;;;
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-(defparameter *trade-opt-lookup* (list (cons '1 'buy-menu)
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- (cons 'b 'buy-menu)
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- (cons '2 'sell-menu)
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- (cons 's 'sell-menu)
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- (cons '3 'top-level-game-menu)
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- (cons 'r 'top-level-game-menu)))
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+(defparameter *trade-opt-lookup* (list (cons '1 (lambda ()
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+ (buy-menu (player-ship-obj *sector*) (market *sector*))))
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+ (cons '2 (lambda ()
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+ (sell-menu (player-ship-obj *sector*) (market *sector*))))
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+ (cons '3 'top-level-game-menu)))
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(defvar *trade-menu-options-display* "
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Actions:
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@@ -13,137 +12,81 @@ Actions:
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3 | Return to top level | r
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")
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-(defun buy-transaction (resource quantity)
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+(defun buy-transaction (resource quantity player-ship-obj market-obj)
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"Do they actual purchase transaction, not intended to be called interactively"
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- (let* ((available-player-funds (player-ship-credits *player-ship*))
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- (inventory (player-ship-inventory *player-ship*))
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- (price (funcall (symbol-function (find-symbol (string-upcase
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- (concatenate 'string "market-price-of-" resource))))
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- (sector-market *sector*)))
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+ (let* ((available-player-funds (credits player-ship-obj))
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+ (inventory-obj (inventory player-ship-obj))
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+ (price (slot-value market-obj (read-from-string (concatenate 'string "price-of-" resource))))
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(total-cost (* quantity price)))
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(if (> total-cost available-player-funds)
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(progn
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(format T "Not enough credits to buy ~A ~A at ~A credits~%" quantity resource price)
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- (format T "~%PLAYER CREDITS: ~A~%" (player-ship-credits *player-ship*))
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+ (format T "~%PLAYER CREDITS: ~A~%" (credits player-ship-obj))
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(return-from buy-transaction NIL))
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(progn
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(let ((resource-sym (read-from-string resource))
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(minus-funds (lambda (amount)
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(let ((remainder (- available-player-funds amount)))
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- (setf (player-ship-credits *player-ship*) remainder)))))
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- (case resource-sym
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- ;;; This is insanely annoying, and will need to be duplicated
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- ;;; for the sell logic, but don't know how else to handle this here
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- (gruel (progn
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- (funcall minus-funds total-cost)
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- (setf (player-inventory-gruel inventory)
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- (+ (player-inventory-gruel inventory) quantity))))
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- (archeotech (progn
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- (funcall minus-funds total-cost)
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- (setf (player-inventory-archeotech inventory)
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- (+ (player-inventory-archeotech inventory) quantity))))
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- (petrofuel (progn
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- (funcall minus-funds total-cost)
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- (setf (player-inventory-petrofuel inventory)
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- (+ (player-inventory-petrofuel inventory) quantity))))
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- (spice (progn
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- (funcall minus-funds total-cost)
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- (setf (player-inventory-spice inventory)
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- (+ (player-inventory-spice inventory) quantity))))
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- (ammo (progn
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- (funcall minus-funds total-cost)
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- (setf (player-inventory-ammo inventory)
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- (+ (player-inventory-ammo inventory) quantity))))))
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- (format T "Successfully purchased ~A ~A~%" quantity resource)))))
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+ (setf (credits player-ship-obj) remainder)))))
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+ (setf (slot-value inventory-obj resource-sym) (+ quantity (slot-value inventory-obj resource-sym)))
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+ (funcall minus-funds total-cost)
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+ (format T "Successfully purchased ~A ~A~%" quantity resource))))))
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-(defun buy-menu ()
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+(defun buy-menu (player-ship-obj market-obj)
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(let ((item-to-buy (prompt-read "Enter a resource to buy: "))
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(quantity (parse-integer (prompt-read "Enter a quantity to buy: "))))
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(if (member item-to-buy '("gruel" "ammo" "petrofuel" "archeotech" "spice") :test #'string=)
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(progn
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- (buy-transaction item-to-buy quantity)
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- (trade-menu)))))
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-
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+ (buy-transaction item-to-buy quantity player-ship-obj market-obj)))))
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-(defun sell-transaction (resource quantity)
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+(defun sell-transaction (resource quantity player-ship-obj market-obj)
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"Do the sale transaction, not intended to be called interactively"
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- (let* ((available-player-funds (player-ship-credits *player-ship*))
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- (inventory (player-ship-inventory *player-ship*))
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- (available-player-resource (funcall (symbol-function (find-symbol (string-upcase
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- (concatenate 'string "player-inventory-" resource))))
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- inventory))
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- (price (funcall (symbol-function (find-symbol (string-upcase
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- (concatenate 'string "market-price-of-" resource))))
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- (sector-market *sector*)))
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+ (let* ((resource-sym (read-from-string resource))
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+ (available-player-funds (credits player-ship-obj))
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+ (inventory (inventory player-ship-obj))
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+ (available-player-resource (slot-value inventory resource-sym))
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+ (price (slot-value market-obj (read-from-string (concatenate 'string "price-of-" resource))))
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(total-profit (* quantity price)))
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(if (> quantity available-player-resource)
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(progn
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(format T "Not enough ~A to sell ~A. You have ~A~%" resource quantity available-player-resource)
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(return-from sell-transaction NIL))
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(progn
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- (let ((resource-sym (read-from-string resource))
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- (remove-resource (lambda (amount)
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+ (let ((remove-resource (lambda (amount)
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(let ((new-credits (+ available-player-funds total-profit)))
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- (setf (player-ship-credits *player-ship*) new-credits))
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+ (setf (credits player-ship-obj) new-credits))
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(- available-player-resource amount)))) ; This is pretty convoluted
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- ;;; remove-resource lambda is a pretty bad idea
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+ ;;; remove-resource lambda is a pretty bad idea?
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;;; it is used to set the new credits amount and then return the amount needed to
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;;; be removed from the resource in the player inventory. I did it this way
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;;; to keep the logic concise, but it smells bad and is probably stupid
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- (case resource-sym
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- ;;; This is insanely annoying, and will need to be duplicated
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- ;;; for the sell logic, but don't know how else to handle this here
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- (gruel (progn
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- (setf (player-inventory-gruel inventory) (funcall remove-resource quantity))))
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- (petrofuel (progn
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- (setf (player-inventory-petrofuel inventory) (funcall remove-resource quantity))))
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- (spice (progn
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- (setf (player-inventory-spice inventory) (funcall remove-resource quantity))))
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- (ammo (progn
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- (setf (player-inventory-ammo inventory) (funcall remove-resource quantity))))
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- (archeotech (progn
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- (setf (player-inventory-archeotech inventory) (funcall remove-resource quantity))))))
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- (format T "Successfully sold ~A ~A~%" quantity resource)))))
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+ (setf (slot-value inventory resource-sym) (funcall remove-resource quantity))
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+ ;; (archeotech (progn
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+ ;; (setf (player-inventory-archeotech inventory) (funcall remove-resource quantity))))))
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+ (format T "Successfully sold ~A ~A~%" quantity resource))))))
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-(defun sell-menu ()
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+(defun sell-menu (player-ship-obj market-obj)
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(let ((item-to-sell (prompt-read "Enter a resource to sell: "))
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(quantity (parse-integer (prompt-read "Enter a quantity to sell: "))))
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(if (member item-to-sell '("gruel" "ammo" "petrofuel" "archeotech" "spice") :test #'string=)
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(progn
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- (sell-transaction item-to-sell quantity)
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- (trade-menu)))))
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-
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-;;; This is kept around in case I need it. I'm not sure
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-;;; this is any less 'bad' than how buy/sell-transaction
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-;;; currently works
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-(defmacro dynamic-slot-access (predicate slotname accessor)
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- "Given a predicate where the predicate is a struct slot accessor like 'market-price-of-',
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- a slotname like 'petrofuel', and a struct location, return the result of the slot accessor function"
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- `(funcall ,(symbol-function (find-symbol (string-upcase (concatenate 'string predicate slotname)))) ,accessor))
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-
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-;; Can't get this to work how I expect, need to experiment morex
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-;; (defmacro dynamic-slot-setting (predicate slotname accessor value)
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-;; `(setf (funcall (symbol-function (find-symbol (string-upcase (concatenate 'string predicate slotname)))) accessor) ,value))
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+ (sell-transaction item-to-sell quantity player-ship-obj market-obj)))))
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-(defun display-prices ()
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- (let ((market-list (list
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- (list "Petrofuel" (market-price-of-petrofuel (sector-market *sector*)))
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- (list "Gruel" (market-price-of-gruel (sector-market *sector*)))
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- (list "Spice" (market-price-of-spice (sector-market *sector*)))
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- (list "Ammo" (market-price-of-ammo (sector-market *sector*)))
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- (list "Archeotech" (market-price-of-archeotech (sector-market *sector*))))))
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- (format T "~%PLAYER CREDITS: ~A~%" (player-ship-credits *player-ship*))
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+(defun display-prices (market-obj player-credits)
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+ (let ((market-list (loop for resource in (return-slots market-obj)
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+ collect (list resource (slot-value market-obj resource)))))
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+ (format T "~%PLAYER CREDITS: ~A~%" player-credits)
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(format T "~%MARKET PRICES~%")
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(format-table T market-list :column-label '("Resource" "Cost"))))
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-(defun trade-menu ()
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- (display-prices)
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- (display-inventory)
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+(defun trade-menu (sector)
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+ (display-prices (market sector) (credits (player-ship-obj sector)))
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+ (display-inventory (player-ship-obj sector))
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(format t *trade-menu-options-display*)
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(let ((option (prompt-read "Enter an option: ")))
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(format t "~%")
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(handle-opt (read-from-string option) *trade-opt-lookup*))
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- (trade-menu))
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+ (trade-menu sector))
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;;; END TRADING ;;;
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@@ -152,20 +95,15 @@ Actions:
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;;; Use this parameter when randomizing market prices. Used to lookup how
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;;; 'random' prices should really be."
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(defparameter *market-price-bounds*
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- (list (cons 'petrofuel '(10 41))
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- (cons 'ammo '(5 31))
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- (cons 'archeotech '(750 2001))
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- (cons 'spice '(5 101))
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- (cons 'gruel '(1 16))))
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+ (list (cons 'price-of-petrofuel '(10 41))
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+ (cons 'price-of-ammo '(5 31))
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+ (cons 'price-of-archeotech '(750 2001))
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+ (cons 'price-of-spice '(5 101))
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+ (cons 'price-of-gruel '(1 16))))
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(defun randomize-market-prices (market)
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(let ((get-random-val (lambda (resource-arg)
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(+ (cadr resource-arg)
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(random (caddr resource-arg))))))
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(loop for resource in *market-price-bounds*
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- do (case (car resource)
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- (gruel (setf (market-price-of-gruel market) (funcall get-random-val resource)))
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- (ammo (setf (market-price-of-ammo market) (funcall get-random-val resource)))
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- (spice (setf (market-price-of-spice market) (funcall get-random-val resource)))
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- (archeotech (setf (market-price-of-archeotech market) (funcall get-random-val resource)))
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- (petrofuel (setf (market-price-of-petrofuel market) (funcall get-random-val resource)))))))
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+ do (setf (slot-value market (car resource)) (funcall get-random-val resource)))))
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